Abstract: As a strategic resource supporting national economic development, tin is highly valued by various countries（regions）. With the wide application of tin in photovoltaic power generation, new energy vehicles and other emerging industries, the contradiction between the supply and demand of tin raw materials has become increasingly prominent, exacerbating the competition between its importing and exporting countries（regions）. Analyzing the current status and evolutionary trends of trade competition pattern of global tin raw materials can help countries and regions build resilient supply chains for tin raw materials. Based on the international trade data of tin raw materials（tin ore and tin scrap） from 2003 to 2022, this paper constructs its international trade network, import and export competition network, and analyzes the structural characteristics, evolution trends, and competitive dynamics among countries（regions） within the import-export competition networks of tin raw materials from a long-term perspective. The results show that the distribution of import and export competition intensity of tin raw materials are uneven, and the competition concentration of tin ore is more obvious. The trend of oligopoly of competition of tin ore is obvious, and the competition of tin scrap is getting more and more intense. The import and export competition of tin ore tends to become increasingly integrated, while the import and export competition of tin scrap is gradually shifting toward regionalization. The import and export competition network of tin raw materials show a significant core-periphery structure. The core of import and export competition of tin ore are located in Asia, European and American countries are the core of import and export competition of tin scrap. China and Myanmar have gradually evolved into the contradictory centers of import and export competition of tin ore. Canada has gradually evolved into the contradictory center of import and export competition of tin ore. It is recommended that major tin-consuming countries, such as China, strategically plan their tin industries, diversify tin resource import channels, and strengthen the development of the recycled tin industry.